Tests of General Relativity from Timing the Double Pulsar

  title={Tests of General Relativity from Timing the Double Pulsar},
  author={Michael Kramer and Ingrid H. Stairs and Richard N. Manchester and Maura Mclaughlin and Andrew G. Lyne and Robert D. Ferdman and Marta Burgay and Duncan R. Lorimer and Andrea Possenti and Nicolo' D'Amico and John M. Sarkissian and George Hobbs and J. Reynolds and Paulo C. C. Freire and Fernando Camilo},
  pages={102 - 97}
The double pulsar system PSR J0737-3039A/B is unique in that both neutron stars are detectable as radio pulsars. They are also known to have much higher mean orbital velocities and accelerations than those of other binary pulsars. The system is therefore a good candidate for testing Einstein's theory of general relativity and alternative theories of gravity in the strong-field regime. We report on precision timing observations taken over the 2.5 years since its discovery and present four… 

The double pulsar system: a unique laboratory for gravity

The PSR J0737–3039 is a double neutron star system in which both stars are detectable as active radio pulsars. The pair, consisting of an old, mildly recycled 23-ms pulsar and a young 2.8-s pulsar,

Pulsars and Gravity

Pulsar periods are extremely stable, making possible many interesting and important applications ranging from determining the proper motion of globular clusters to detecting gravitational waves. Many


We present relativistic analyses of 9257 measurements of times-of-arrival from the first binary pulsar, PSR B1913+16, acquired over the last 35 years. The determination of the “Keplerian” orbital

The double pulsar.

A new era in fundamental physics began with the discovery of pulsars 1967, the discovery of the first binary pulsar in 1974 and the first millisecond pulsar in 1982. Ever since, pulsars have been

The Double Pulsar

A new eaa in fundamental physics began with the discovery of pulsars 1967, the discovery of the first binary pulsar in 1974 and the first millisecond pulsar in 1982. Ever since, pulsars have been


We present updated analyses of pulse profiles and their arrival times from PSR B1534+12, a 37.9 ms radio pulsar in orbit with another neutron star. A high-precision timing model is derived from 22 yr

PSR J1756-2251: a pulsar with a low-mass neutron star companion

The pulsar PSR J1756$-$2251 resides in a relativistic double neutron star (DNS) binary system with a 7.67-hr orbit. We have conducted long-term precision timing on more than 9 years of data acquired

General Relativity support from the double pulsar

After the final publication of the Theory of General Relativity by Albert Einstein in 1916, experimental confirmation rested on three astronomical tests. These were the amount of bending of starlight

Gravity Tests with Radio Pulsars

The discovery of the first binary pulsar in 1974 has opened up a completely new field of experimental gravity. In numerous important ways, pulsars have taken precision gravity tests quantitatively


The double pulsar system PSR J0737−3039A/B is a double neutron star binary, with a 2.4 hr orbital period, which has allowed measurement of relativistic orbital perturbations to high precision. The



Strong-field tests of relativistic gravity and binary pulsars.

  • DamourTaylor
  • Physics
    Physical review. D, Particles and fields
  • 1992
A detailed account of the parametrized post-Keplerian'' (PPK) formalism, a general phenomenological framework designed to extract the maximum possible information from pulsar timing and pulse-structure data, and how it can be combined with the predictions of a rather generic class of tensor biscalar theories to bring together tests based on observations of several different pulsars.

Further experimental tests of relativistic gravity using the binary pulsar PSR 1913+16

Fourteen-year observations of the binary pulsar PSR 1913 + 16 provided data consistent with a straightforward model allowing for the motion of the earth, special and general relativistic effects

A test of general relativity using radio links with the Cassini spacecraft

A measurement of the frequency shift of radio photons to and from the Cassini spacecraft as they passed near the Sun agrees with the predictions of standard general relativity with a sensitivity that approaches the level at which, theoretically, deviations are expected in some cosmological models.

Probing the Eclipse of J0737–3039A with Scintillation

We have examined the interstellar scintillations of the pulsars in the double-pulsar binary system. Near the time of the eclipse of pulsar A by the magnetosphere of B, the scintillations from both

Higher-order relativistic periastron advances and binary pulsars

SummaryThe contributions to the periastron advance of a system of two condensed bodies coming from relativistic dynamical effects of order higher than the usual first post-Newtonian (1PN) equations

An increased estimate of the merger rate of double neutron stars from observations of a highly relativistic system

This work reports the discovery of a 22-ms pulsar, PSR J0737–3039, which is a member of a highly relativistic double-neutron-star binary with an orbital period of 2.4 hours, which implies an order-of-magnitude increase in the predicted merger rate for double- NEUTron- star systems in the authors' Galaxy (and in the rest of the Universe).

Green Bank Telescope Measurement of the Systemic Velocity of the Double Pulsar Binary J0737–3039 and Implications for Its Formation

We report on the measurement at 820 and 1400 MHz of the orbital modulation of the diffractive scintillation timescale from pulsar A in the double-pulsar system J0737-3039 using the Green Bank

The Mean Pulse Profile of PSR J0737–3039A

General relativity predicts that the spin axes of the pulsars in the double-pulsar system PSR J0737-3039A/B will precess rapidly, in general leading to a change in the observed pulse profiles. We

Strong‐field tests of gravity with the double pulsar

This first‐ever double‐pulsar system was discovered in 2003, consisting of two visible pulsars which orbit the common centre of mass in a slightly eccentric orbit in only 2.4 hours. One of the

Effects of gravitational lensing and companion motion on the binary pulsar timing

The measurement of the Shapiro time delay in binary pulsar systems with highly-inclined orbit can be affected both by the motion of the pulsar's companion because of the finite time it takes a photon